cam shaft figures

[hillclimb86]

Would like to know if some one could tell me the duration of these cams as i have been told two different things buy two people in the know. I dont know if one of them was having a bad day or what any help would be tops.
http://www.ae86drivingclub.com.au/dcimages/4/8/4/3/150965.jpg

[ghetto ke]

well... inlet appears to be 292 and exhaust 289 (rounded to nearest degree)

[hillclimb86]

is that right as I've been told that it's 258 and 257

[ghetto ke]

is that right as I've been told that it's 258 and 257[/b]

292/289 at Centre Line (rounded)

or

258/257 at .050 lift CL (rounded)

[hillclimb86]

i relise that but which figure do you use when comparing to standard cams and after market cams such as ones from toda, hks.
the difference between the 292/289 and 258/257 is huge and the higher figure not what i asked for.

[mikewestphoto]

Your cams are 258/257 in the normal figure. This duration number is the duration at a lift of 0.006" or greater.

HKS/Tomei/Toda/etc should list what their duration is measured at but mostly this duration is measured when lift is 0.050" or greater. This figure for your cams are 218/218

[hillclimb86]

thanks mate thats what I wanted to hear